From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- security/selinux/include/security.h | 467 ++++++++++++++++++++++++++++++++++++ 1 file changed, 467 insertions(+) create mode 100644 security/selinux/include/security.h (limited to 'security/selinux/include/security.h') diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h new file mode 100644 index 000000000..393aff41d --- /dev/null +++ b/security/selinux/include/security.h @@ -0,0 +1,467 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Security server interface. + * + * Author : Stephen Smalley, + * + */ + +#ifndef _SELINUX_SECURITY_H_ +#define _SELINUX_SECURITY_H_ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "flask.h" +#include "policycap.h" + +#define SECSID_NULL 0x00000000 /* unspecified SID */ +#define SECSID_WILD 0xffffffff /* wildcard SID */ +#define SECCLASS_NULL 0x0000 /* no class */ + +/* Identify specific policy version changes */ +#define POLICYDB_VERSION_BASE 15 +#define POLICYDB_VERSION_BOOL 16 +#define POLICYDB_VERSION_IPV6 17 +#define POLICYDB_VERSION_NLCLASS 18 +#define POLICYDB_VERSION_VALIDATETRANS 19 +#define POLICYDB_VERSION_MLS 19 +#define POLICYDB_VERSION_AVTAB 20 +#define POLICYDB_VERSION_RANGETRANS 21 +#define POLICYDB_VERSION_POLCAP 22 +#define POLICYDB_VERSION_PERMISSIVE 23 +#define POLICYDB_VERSION_BOUNDARY 24 +#define POLICYDB_VERSION_FILENAME_TRANS 25 +#define POLICYDB_VERSION_ROLETRANS 26 +#define POLICYDB_VERSION_NEW_OBJECT_DEFAULTS 27 +#define POLICYDB_VERSION_DEFAULT_TYPE 28 +#define POLICYDB_VERSION_CONSTRAINT_NAMES 29 +#define POLICYDB_VERSION_XPERMS_IOCTL 30 +#define POLICYDB_VERSION_INFINIBAND 31 +#define POLICYDB_VERSION_GLBLUB 32 +#define POLICYDB_VERSION_COMP_FTRANS 33 /* compressed filename transitions */ + +/* Range of policy versions we understand*/ +#define POLICYDB_VERSION_MIN POLICYDB_VERSION_BASE +#define POLICYDB_VERSION_MAX POLICYDB_VERSION_COMP_FTRANS + +/* Mask for just the mount related flags */ +#define SE_MNTMASK 0x0f +/* Super block security struct flags for mount options */ +/* BE CAREFUL, these need to be the low order bits for selinux_get_mnt_opts */ +#define CONTEXT_MNT 0x01 +#define FSCONTEXT_MNT 0x02 +#define ROOTCONTEXT_MNT 0x04 +#define DEFCONTEXT_MNT 0x08 +#define SBLABEL_MNT 0x10 +/* Non-mount related flags */ +#define SE_SBINITIALIZED 0x0100 +#define SE_SBPROC 0x0200 +#define SE_SBGENFS 0x0400 +#define SE_SBGENFS_XATTR 0x0800 + +#define CONTEXT_STR "context" +#define FSCONTEXT_STR "fscontext" +#define ROOTCONTEXT_STR "rootcontext" +#define DEFCONTEXT_STR "defcontext" +#define SECLABEL_STR "seclabel" + +struct netlbl_lsm_secattr; + +extern int selinux_enabled_boot; + +/* + * type_datum properties + * available at the kernel policy version >= POLICYDB_VERSION_BOUNDARY + */ +#define TYPEDATUM_PROPERTY_PRIMARY 0x0001 +#define TYPEDATUM_PROPERTY_ATTRIBUTE 0x0002 + +/* limitation of boundary depth */ +#define POLICYDB_BOUNDS_MAXDEPTH 4 + +struct selinux_avc; +struct selinux_policy; + +struct selinux_state { +#ifdef CONFIG_SECURITY_SELINUX_DISABLE + bool disabled; +#endif +#ifdef CONFIG_SECURITY_SELINUX_DEVELOP + bool enforcing; +#endif + bool checkreqprot; + bool initialized; + bool policycap[__POLICYDB_CAP_MAX]; + + struct page *status_page; + struct mutex status_lock; + + struct selinux_avc *avc; + struct selinux_policy __rcu *policy; + struct mutex policy_mutex; +} __randomize_layout; + +void selinux_avc_init(struct selinux_avc **avc); + +extern struct selinux_state selinux_state; + +static inline bool selinux_initialized(const struct selinux_state *state) +{ + /* do a synchronized load to avoid race conditions */ + return smp_load_acquire(&state->initialized); +} + +static inline void selinux_mark_initialized(struct selinux_state *state) +{ + /* do a synchronized write to avoid race conditions */ + smp_store_release(&state->initialized, true); +} + +#ifdef CONFIG_SECURITY_SELINUX_DEVELOP +static inline bool enforcing_enabled(struct selinux_state *state) +{ + return READ_ONCE(state->enforcing); +} + +static inline void enforcing_set(struct selinux_state *state, bool value) +{ + WRITE_ONCE(state->enforcing, value); +} +#else +static inline bool enforcing_enabled(struct selinux_state *state) +{ + return true; +} + +static inline void enforcing_set(struct selinux_state *state, bool value) +{ +} +#endif + +static inline bool checkreqprot_get(const struct selinux_state *state) +{ + return READ_ONCE(state->checkreqprot); +} + +static inline void checkreqprot_set(struct selinux_state *state, bool value) +{ + if (value) + pr_err("SELinux: https://github.com/SELinuxProject/selinux-kernel/wiki/DEPRECATE-checkreqprot\n"); + WRITE_ONCE(state->checkreqprot, value); +} + +#ifdef CONFIG_SECURITY_SELINUX_DISABLE +static inline bool selinux_disabled(struct selinux_state *state) +{ + return READ_ONCE(state->disabled); +} + +static inline void selinux_mark_disabled(struct selinux_state *state) +{ + WRITE_ONCE(state->disabled, true); +} +#else +static inline bool selinux_disabled(struct selinux_state *state) +{ + return false; +} +#endif + +static inline bool selinux_policycap_netpeer(void) +{ + struct selinux_state *state = &selinux_state; + + return READ_ONCE(state->policycap[POLICYDB_CAP_NETPEER]); +} + +static inline bool selinux_policycap_openperm(void) +{ + struct selinux_state *state = &selinux_state; + + return READ_ONCE(state->policycap[POLICYDB_CAP_OPENPERM]); +} + +static inline bool selinux_policycap_extsockclass(void) +{ + struct selinux_state *state = &selinux_state; + + return READ_ONCE(state->policycap[POLICYDB_CAP_EXTSOCKCLASS]); +} + +static inline bool selinux_policycap_alwaysnetwork(void) +{ + struct selinux_state *state = &selinux_state; + + return READ_ONCE(state->policycap[POLICYDB_CAP_ALWAYSNETWORK]); +} + +static inline bool selinux_policycap_cgroupseclabel(void) +{ + struct selinux_state *state = &selinux_state; + + return READ_ONCE(state->policycap[POLICYDB_CAP_CGROUPSECLABEL]); +} + +static inline bool selinux_policycap_nnp_nosuid_transition(void) +{ + struct selinux_state *state = &selinux_state; + + return READ_ONCE(state->policycap[POLICYDB_CAP_NNP_NOSUID_TRANSITION]); +} + +static inline bool selinux_policycap_genfs_seclabel_symlinks(void) +{ + struct selinux_state *state = &selinux_state; + + return READ_ONCE(state->policycap[POLICYDB_CAP_GENFS_SECLABEL_SYMLINKS]); +} + +static inline bool selinux_policycap_ioctl_skip_cloexec(void) +{ + struct selinux_state *state = &selinux_state; + + return READ_ONCE(state->policycap[POLICYDB_CAP_IOCTL_SKIP_CLOEXEC]); +} + +struct selinux_policy_convert_data; + +struct selinux_load_state { + struct selinux_policy *policy; + struct selinux_policy_convert_data *convert_data; +}; + +int security_mls_enabled(struct selinux_state *state); +int security_load_policy(struct selinux_state *state, + void *data, size_t len, + struct selinux_load_state *load_state); +void selinux_policy_commit(struct selinux_state *state, + struct selinux_load_state *load_state); +void selinux_policy_cancel(struct selinux_state *state, + struct selinux_load_state *load_state); +int security_read_policy(struct selinux_state *state, + void **data, size_t *len); +int security_read_state_kernel(struct selinux_state *state, + void **data, size_t *len); +int security_policycap_supported(struct selinux_state *state, + unsigned int req_cap); + +#define SEL_VEC_MAX 32 +struct av_decision { + u32 allowed; + u32 auditallow; + u32 auditdeny; + u32 seqno; + u32 flags; +}; + +#define XPERMS_ALLOWED 1 +#define XPERMS_AUDITALLOW 2 +#define XPERMS_DONTAUDIT 4 + +#define security_xperm_set(perms, x) ((perms)[(x) >> 5] |= 1 << ((x) & 0x1f)) +#define security_xperm_test(perms, x) (1 & ((perms)[(x) >> 5] >> ((x) & 0x1f))) +struct extended_perms_data { + u32 p[8]; +}; + +struct extended_perms_decision { + u8 used; + u8 driver; + struct extended_perms_data *allowed; + struct extended_perms_data *auditallow; + struct extended_perms_data *dontaudit; +}; + +struct extended_perms { + u16 len; /* length associated decision chain */ + struct extended_perms_data drivers; /* flag drivers that are used */ +}; + +/* definitions of av_decision.flags */ +#define AVD_FLAGS_PERMISSIVE 0x0001 + +void security_compute_av(struct selinux_state *state, + u32 ssid, u32 tsid, + u16 tclass, struct av_decision *avd, + struct extended_perms *xperms); + +void security_compute_xperms_decision(struct selinux_state *state, + u32 ssid, u32 tsid, u16 tclass, + u8 driver, + struct extended_perms_decision *xpermd); + +void security_compute_av_user(struct selinux_state *state, + u32 ssid, u32 tsid, + u16 tclass, struct av_decision *avd); + +int security_transition_sid(struct selinux_state *state, + u32 ssid, u32 tsid, u16 tclass, + const struct qstr *qstr, u32 *out_sid); + +int security_transition_sid_user(struct selinux_state *state, + u32 ssid, u32 tsid, u16 tclass, + const char *objname, u32 *out_sid); + +int security_member_sid(struct selinux_state *state, u32 ssid, u32 tsid, + u16 tclass, u32 *out_sid); + +int security_change_sid(struct selinux_state *state, u32 ssid, u32 tsid, + u16 tclass, u32 *out_sid); + +int security_sid_to_context(struct selinux_state *state, u32 sid, + char **scontext, u32 *scontext_len); + +int security_sid_to_context_force(struct selinux_state *state, + u32 sid, char **scontext, u32 *scontext_len); + +int security_sid_to_context_inval(struct selinux_state *state, + u32 sid, char **scontext, u32 *scontext_len); + +int security_context_to_sid(struct selinux_state *state, + const char *scontext, u32 scontext_len, + u32 *out_sid, gfp_t gfp); + +int security_context_str_to_sid(struct selinux_state *state, + const char *scontext, u32 *out_sid, gfp_t gfp); + +int security_context_to_sid_default(struct selinux_state *state, + const char *scontext, u32 scontext_len, + u32 *out_sid, u32 def_sid, gfp_t gfp_flags); + +int security_context_to_sid_force(struct selinux_state *state, + const char *scontext, u32 scontext_len, + u32 *sid); + +int security_get_user_sids(struct selinux_state *state, + u32 callsid, char *username, + u32 **sids, u32 *nel); + +int security_port_sid(struct selinux_state *state, + u8 protocol, u16 port, u32 *out_sid); + +int security_ib_pkey_sid(struct selinux_state *state, + u64 subnet_prefix, u16 pkey_num, u32 *out_sid); + +int security_ib_endport_sid(struct selinux_state *state, + const char *dev_name, u8 port_num, u32 *out_sid); + +int security_netif_sid(struct selinux_state *state, + char *name, u32 *if_sid); + +int security_node_sid(struct selinux_state *state, + u16 domain, void *addr, u32 addrlen, + u32 *out_sid); + +int security_validate_transition(struct selinux_state *state, + u32 oldsid, u32 newsid, u32 tasksid, + u16 tclass); + +int security_validate_transition_user(struct selinux_state *state, + u32 oldsid, u32 newsid, u32 tasksid, + u16 tclass); + +int security_bounded_transition(struct selinux_state *state, + u32 oldsid, u32 newsid); + +int security_sid_mls_copy(struct selinux_state *state, + u32 sid, u32 mls_sid, u32 *new_sid); + +int security_net_peersid_resolve(struct selinux_state *state, + u32 nlbl_sid, u32 nlbl_type, + u32 xfrm_sid, + u32 *peer_sid); + +int security_get_classes(struct selinux_policy *policy, + char ***classes, int *nclasses); +int security_get_permissions(struct selinux_policy *policy, + char *class, char ***perms, int *nperms); +int security_get_reject_unknown(struct selinux_state *state); +int security_get_allow_unknown(struct selinux_state *state); + +#define SECURITY_FS_USE_XATTR 1 /* use xattr */ +#define SECURITY_FS_USE_TRANS 2 /* use transition SIDs, e.g. devpts/tmpfs */ +#define SECURITY_FS_USE_TASK 3 /* use task SIDs, e.g. pipefs/sockfs */ +#define SECURITY_FS_USE_GENFS 4 /* use the genfs support */ +#define SECURITY_FS_USE_NONE 5 /* no labeling support */ +#define SECURITY_FS_USE_MNTPOINT 6 /* use mountpoint labeling */ +#define SECURITY_FS_USE_NATIVE 7 /* use native label support */ +#define SECURITY_FS_USE_MAX 7 /* Highest SECURITY_FS_USE_XXX */ + +int security_fs_use(struct selinux_state *state, struct super_block *sb); + +int security_genfs_sid(struct selinux_state *state, + const char *fstype, const char *path, u16 sclass, + u32 *sid); + +int selinux_policy_genfs_sid(struct selinux_policy *policy, + const char *fstype, const char *path, u16 sclass, + u32 *sid); + +#ifdef CONFIG_NETLABEL +int security_netlbl_secattr_to_sid(struct selinux_state *state, + struct netlbl_lsm_secattr *secattr, + u32 *sid); + +int security_netlbl_sid_to_secattr(struct selinux_state *state, + u32 sid, + struct netlbl_lsm_secattr *secattr); +#else +static inline int security_netlbl_secattr_to_sid(struct selinux_state *state, + struct netlbl_lsm_secattr *secattr, + u32 *sid) +{ + return -EIDRM; +} + +static inline int security_netlbl_sid_to_secattr(struct selinux_state *state, + u32 sid, + struct netlbl_lsm_secattr *secattr) +{ + return -ENOENT; +} +#endif /* CONFIG_NETLABEL */ + +const char *security_get_initial_sid_context(u32 sid); + +/* + * status notifier using mmap interface + */ +extern struct page *selinux_kernel_status_page(struct selinux_state *state); + +#define SELINUX_KERNEL_STATUS_VERSION 1 +struct selinux_kernel_status { + u32 version; /* version number of the structure */ + u32 sequence; /* sequence number of seqlock logic */ + u32 enforcing; /* current setting of enforcing mode */ + u32 policyload; /* times of policy reloaded */ + u32 deny_unknown; /* current setting of deny_unknown */ + /* + * The version > 0 supports above members. + */ +} __packed; + +extern void selinux_status_update_setenforce(struct selinux_state *state, + int enforcing); +extern void selinux_status_update_policyload(struct selinux_state *state, + int seqno); +extern void selinux_complete_init(void); +extern int selinux_disable(struct selinux_state *state); +extern void exit_sel_fs(void); +extern struct path selinux_null; +extern void selnl_notify_setenforce(int val); +extern void selnl_notify_policyload(u32 seqno); +extern int selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm); + +extern void avtab_cache_init(void); +extern void ebitmap_cache_init(void); +extern void hashtab_cache_init(void); +extern int security_sidtab_hash_stats(struct selinux_state *state, char *page); + +#endif /* _SELINUX_SECURITY_H_ */ -- cgit v1.2.3